I am a Support Engineer with over 4 years of hands-on experience supporting high-availability applications within event-driven distributed systems. I am skilled in troubleshooting, incident management, cross-functional collaboration, and real-time debugging. I have a passion for improving customer experiences through scalable, thoughtful solutions. I have automated workflows using Python that have cut operational effort by 90%, and consistently exceed SLA targets above 99%. I enjoy working across cloud platforms and distributed applications, always aiming to deliver reliable and efficient technical support and development.

Charmaine Olupitan

I am a Support Engineer with over 4 years of hands-on experience supporting high-availability applications within event-driven distributed systems. I am skilled in troubleshooting, incident management, cross-functional collaboration, and real-time debugging. I have a passion for improving customer experiences through scalable, thoughtful solutions. I have automated workflows using Python that have cut operational effort by 90%, and consistently exceed SLA targets above 99%. I enjoy working across cloud platforms and distributed applications, always aiming to deliver reliable and efficient technical support and development.

Available to hire

I am a Support Engineer with over 4 years of hands-on experience supporting high-availability applications within event-driven distributed systems. I am skilled in troubleshooting, incident management, cross-functional collaboration, and real-time debugging. I have a passion for improving customer experiences through scalable, thoughtful solutions.

I have automated workflows using Python that have cut operational effort by 90%, and consistently exceed SLA targets above 99%. I enjoy working across cloud platforms and distributed applications, always aiming to deliver reliable and efficient technical support and development.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
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Work Experience

Technical Application Support Engineer at VIOOH (JCDecaux)
January 1, 2024 - Present
Built Python-based automation scripts integrating multiple agent endpoints, reducing manual processing workload by 90%. Designed and implemented scalable OAuth2 workflows across Google APIs and Auth0 to enable secure and real-time token lifecycle management. Provided incident response and end-to-end debugging support for critical distributed systems in a rotating out-of-hours model, maintaining high-priority SLA targets. Authored SQL queries for data validation and proactively monitored system health using Datadog. Authored technical documentation and troubleshooting runbooks for both internal teams and client-facing support.
Backend Engineer (Electronic Trading Division) at UBS Group AG
December 31, 2023 - July 16, 2025
Developed REST APIs consuming live market data for algorithmic trading in a high-frequency environment. Conducted end-to-end debugging to minimize latency and optimized system performance to ensure sub-millisecond production response times. Used Postman for API validation and created automated regression test scripts documenting edge-case scenarios. Collaborated in Agile teams through daily stand-ups, sprint retrospectives, code reviews, and testing pipelines. Worked closely with trading teams to ensure data accuracy and failover confidence.
Dev Support (HUP) at Global Media Entertainment
November 30, 2023 - July 16, 2025
Executed SQL queries verifying data integrity and synchronization across microservices and third-party systems while monitoring with Grafana dashboards. Investigated live Java backend application errors and contributed code fixes, reducing repeat failures. Produced internal architecture diagrams and error documentation to facilitate knowledge transfer.
Junior DevOps Engineer (HUP) at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provisioned scalable Azure infrastructure using Terraform as part of team DevOps pipelines. Supported deployment workflows and CI/CD processes to streamline delivery. Participated in operational support and infrastructure automation tasks.
Technical Support Analyst at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provided Tier 1–2 support for over 2000 users across cloud (Azure, O365) and on-premise systems, resolving networking, authentication, and application issues. Supported enterprise tools including Citrix, Salesforce, and Tableau on Mac and Windows platforms. Managed access and identity provisioning using Active Directory, Exchange Online, and Jamf for mobile device management.
Technical Analyst at The Digital Culture Group
June 30, 2022 - July 16, 2025
Performed system integration and deployment of SaaS tools. Authored technical requirement documentation aligning with business goals and technological constraints. Supported user testing and provided deployment feedback.
Senior IT Administrator at Surrey Physiotherapy
December 31, 2021 - July 16, 2025
Managed and led a team to resolve IT, network, and hardware issues while providing last-line customer support. Promoted for exceeding goals and enhancing company culture and system scalability.
IT Administrator at Surrey Physiotherapy
March 31, 2021 - July 16, 2025
Supported daily clinic operations by troubleshooting and maintaining IT systems. Assisted in EHR implementation and upgrades, coordinating developer integrations. Managed printer configurations and network support.
Technical Application Support Engineer at VIOOH (JCDecaux)
January 1, 2024 - Present
Built Python-based automation scripts integrating with multiple agent endpoints to drastically improve manual process workload, cutting task execution time by 90%. Designed and implemented scalable end-to-end OAuth2 workflows across Google APIs and Auth0, enabling secure and real-time token lifecycle management. Delivered support for critical distributed systems in a rotating out-of-hours support model, leading incident response, diagnosis, debugging, and resolution under high-priority SLAs. Wrote and optimized complex SQL queries for data validation and monitored system health using Datadog. Authored technical integration guides and troubleshooting runbooks for scalable support operations.
Backend Engineer (Electronic Trading Division) at UBS Group AG
December 31, 2023 - July 16, 2025
Designed and developed REST APIs consuming live market data for algorithmic execution in a high-frequency environment. Conducted end-to-end debugging and performance tuning to ensure sub-millisecond response times in production. Validated API behavior under load with Postman and automated regression test scripts. Collaborated in Agile teams with daily stand-ups, sprint retrospectives, code reviews, and testing pipelines. Worked closely with trading teams to ensure data accuracy and failover readiness.
Dev Support at Global Media Entertainment
November 30, 2023 - July 16, 2025
Executed SQL queries to verify data consistency and synchronization across microservices and third-party systems. Monitored with Grafana dashboards via logs. Investigated live application errors and contributed bug fixes directly to the Java-based backend to reduce repeat failures. Produced clear internal architecture diagrams and error documentation.
Junior DevOps Engineer at Global Media Entertainment
November 30, 2023 - July 16, 2025
Provisioned Azure infrastructure using Terraform, deploying scalable resources as part of team-wide DevOps pipelines. Participated in deployment processes to support team delivery workflows.
Technical Support Analyst at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provided Tier 1–2 support across cloud-based (Azure, O365) and on-premise systems, resolving incidents related to networking, authentication, and application errors. Supported enterprise tools like Citrix, Salesforce, Tableau, and AV/Crestron systems across Mac and Windows environments. Managed user provisioning, access issues, and mobile device management using tools such as Active Directory, Exchange Online, and Jamf.
Technical Analyst at The Digital Culture Group
June 30, 2022 - July 16, 2025
Performed system integration and deployment of SaaS tools. Authored technical requirement documentation aligned with business and technology goals. Aided in user testing and provided feedback for deployment.
Senior IT Administrator at Surrey Physiotherapy
December 31, 2021 - July 16, 2025
Managed a team to efficiently resolve IT, network, and hardware technical issues while providing last-line support to ensure excellent customer service. Promoted and recognized for exceeding goals and promoting a positive company culture and system scaling.
IT Administrator at Surrey Physiotherapy
March 31, 2021 - July 16, 2025
Developed understanding of industry-level IT systems and procedures ensuring clinic efficiency through troubleshooting. Supported implementation and maintenance of Electronic Health Records (EHRs) and coordinated technical upgrade projects with developers for integrations. Configured local and network printers.
Technical Application Support Engineer at VIOOH (JCDecaux)
January 1, 2024 - Present
Built Python-based automation scripts integrating with multiple agent endpoints, reducing manual task execution time by 90%. Designed and implemented scalable end-to-end OAuth2 workflows across Google APIs and Auth0 for secure and real-time token lifecycle management. Delivered incident response and troubleshooting for critical distributed systems under high-priority SLAs in a rotating out-of-hours support model. Authored complex SQL queries for data validation and proactively monitored system health using Datadog. Created technical integration guides, API documentation, and troubleshooting runbooks to support internal teams and clients.
Backend Engineer - (Electronic Trading Division) at UBS Group AG
December 31, 2023 - July 16, 2025
Designed and developed REST APIs to consume live market data and execute algorithmic trading in a high-frequency environment. Conducted end-to-end debugging and performance tuning to ensure sub-millisecond response times in production. Validated API behavior under load using Postman and automated regression test scripts. Collaborated in Agile teams with code reviews, daily stand-ups, and sprint retrospectives. Coordinated with trading teams to maintain data accuracy and failover.
Dev Support - (HUP) at Global Media Entertainment
November 30, 2023 - July 16, 2025
Executed SQL queries to verify data consistency and monitoring via Grafana dashboards. Investigated live application errors and provided bug fixes in Java backend to reduce repeat failures. Produced internal architecture diagrams and error documentation to aid knowledge transfer.
Junior DevOps Engineer (HUP) at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provisioned Azure infrastructure using Terraform as part of team-wide DevOps pipelines. Participated in CI/CD deployment processes to support delivery workflows.
Technical Support Analyst at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provided Tier 1–2 support for 2000+ users across cloud (Azure, O365) and on-premise systems. Resolved incidents related to networking, authentication, and applications. Supported enterprise tools such as Citrix, Salesforce, Tableau, and AV/Crestron systems. Managed access and identity through Active Directory, Exchange Online, and Jamf.
Technical Analyst at The Digital Culture Group
June 30, 2022 - July 16, 2025
Integrated SaaS tools and produced technical requirement documentation aligned with business goals. Provided user testing feedback and created documentation outlining infrastructure best practices.
Senior IT Administrator at Surrey Physiotherapy
December 31, 2021 - July 16, 2025
Managed a team efficiently resolving IT, network, and hardware issues, providing last line support for excellent customer service. Recognized for exceeding goals and promoting positive company culture and system scaling.
IT Administrator at Surrey Physiotherapy
March 31, 2021 - July 16, 2025
Supported basic industry-level IT systems and troubleshooting for clinic operations. Assisted with implementation and maintenance of Electronic Health Records (EHRs) and coordinated technical upgrades and integrations. Managed local and network printer configurations.
Technical Application Support Engineer at VIOOH (JCDecaux)
January 1, 2024 - Present
Built Python-based automation scripts integrating multiple agent endpoints to drastically reduce manual workloads by 90%. Designed and implemented scalable end-to-end OAuth2 workflows across Google APIs and Auth0 for secure and real-time token lifecycle management. Delivered critical incident response and endpoint troubleshooting under high-priority SLA conditions. Authored technical integration guides and API documentation, and monitored system health using Datadog. Utilized tools such as Postman, Jira, and Git.
Backend Engineer (Electronic Trading Division) at UBS Group AG
December 31, 2023 - July 16, 2025
Designed and developed REST APIs consuming live market data for algorithmic execution in a high-frequency trading environment. Conducted end-to-end debugging and performance tuning to ensure sub-millisecond response times. Validated API behavior under load and automated regression testing. Collaborated in Agile teams for daily stand-ups, code reviews, and testing pipelines and ensured data accuracy and failover compliance with trading teams.
Dev Support (HUP) at Global Media Entertainment
November 30, 2023 - July 16, 2025
Executed SQL queries to verify data consistency across microservices and third-party systems and monitored logs via Grafana dashboards. Investigated live application errors and contributed bug fixes to the Java backend, reducing repeat failures. Produced internal architecture and error documentation.
Junior DevOps Engineer (HUP) at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provisioned Azure infrastructure using Terraform with scalable resource deployment integrated into team DevOps pipelines. Participated in deployment processes supporting team delivery workflows and daily operations.
Technical Support Analyst at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provided Tier 1–2 support for over 2000 users across cloud-based and on-premise systems. Resolved networking, authentication, and application incidents. Supported enterprise tools like Citrix, Salesforce, Tableau, and AV/Crestron systems in Mac and Windows environments. Gained hands-on experience in Active Directory, Exchange Online, and Jamf for user provisioning and mobile device management.
Technical Analyst at The Digital Culture Group
June 30, 2022 - July 16, 2025
Handled system integration and deployment of SaaS tools. Authored technical requirements documentation and best practice guidelines. Assisted in user testing and provided feedback for deployments.
Senior IT Administrator at Surrey Physiotherapy
December 31, 2021 - July 16, 2025
Managed a technical team resolving IT, network, and hardware issues while providing last-line customer support. Recognized for exceeding goals and fostering positive company culture along with system scaling initiatives.
IT Administrator at Surrey Physiotherapy
March 31, 2021 - July 16, 2025
Supported industry-level IT systems and procedures ensuring efficient clinic operations. Assisted in the implementation and maintenance of Electronic Health Records (EHR) systems and led technical upgrades including integrations with developers. Configured local and network printers.
Technical Application Support Engineer at VIOOH (JCDecaux)
January 1, 2024 - Present
Built Python-based automation scripts integrating with multiple agent endpoints to drastically improve manual process workload, cutting task execution time by 90%. Designed and implemented scalable end-to-end OAuth2 workflows across Google APIs and Auth0 for secure token lifecycle management. Delivered support for critical distributed systems including incident response, diagnosis, end-to-end debugging and resolution under high-priority SLAs. Wrote and optimised complex SQL queries for data validation. Monitored system health and application performance with Datadog, proactively identifying trends and preventing downtime. Authored technical integration guides, API documentation, and troubleshooting runbooks for scalable support operations. Used Postman, Jira, and Git in daily tasks.
Backend Engineer (Electronic Trading Division) at UBS Group AG
December 31, 2023 - July 16, 2025
Designed and developed REST APIs consuming live market data for algorithmic execution in high-frequency environments. Conducted end-to-end debugging and performance tuning to ensure sub-millisecond response times in production. Validated API behavior under load with Postman and automated regression testing. Collaborated in Agile teams including stand-ups, code reviews, and testing pipelines. Worked closely with trading teams to confirm data accuracy and failover readiness.
Dev Support (HUP) at Global Media Entertainment
November 30, 2023 - July 16, 2025
Executed SQL queries to verify data consistency and synchronization across microservices and third-party systems. Monitored application logs via Grafana dashboards. Investigated live application errors and contributed bug fixes to Java-based backend to reduce repeat failures. Produced internal architecture diagrams and error documentation.
Junior DevOps Engineer (HUP) at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provisioned Azure infrastructure via Terraform deploying scalable resources as part of DevOps pipelines. Supported deployment processes to assist team delivery workflows.
Technical Support Analyst at Global Media Entertainment
December 31, 2023 - July 16, 2025
Provided Tier 1–2 cloud and on-premise support for 2000+ users resolving issues related to networking, authentication, and applications across Azure, O365, Citrix, Salesforce, Tableau, AV/Crestron systems. Experienced with Active Directory, Exchange Online, Jamf for user provisioning, access, and device management on Mac and Windows environments.
Technical Analyst at The Digital Culture Group
June 30, 2022 - July 16, 2025
Engaged in system and tool integration and deployment of SaaS tools. Authored technical requirement documents aligned with business goals and technology. Assisted with user testing and deployment feedback.
Senior IT Administrator at Surrey Physiotherapy
December 31, 2021 - July 16, 2025
Managed a technical team to resolve IT, network, and hardware issues ensuring excellent customer service and efficient system scaling. Recognized for exceeding goals and fostering a positive company culture.
IT Administrator at Surrey Physiotherapy
March 31, 2021 - July 16, 2025
Supported basic industry-level IT systems ensuring smooth daily operations. Assisted with Electronic Health Records (EHRs) implementation and maintenance including upgrades and working with developers for integrations. Supported and configured local and network printers.

Education

Bachelor of Laws (LLB) at Nottingham Trent University
January 1, 2015 - December 31, 2018
Bachelor of Laws (LLB) at Nottingham Trent University
January 1, 2015 - December 31, 2018
Bachelor of Laws (LLB) at Nottingham Trent University
January 1, 2015 - December 31, 2018
Bachelor of Laws (LLB) at Nottingham Trent University
January 1, 2015 - December 31, 2018
Bachelor of Laws (LLB) at Nottingham Trent University
January 1, 2015 - December 31, 2018

Qualifications

AZ-900: Microsoft Azure Fundamentals
April 1, 2023 - April 30, 2023
ITS-304: Python Fundamentals
April 1, 2023 - April 30, 2023
AZ-900: Microsoft Azure Fundamentals
April 1, 2023 - April 30, 2023
ITS-304: Python Fundamentals
April 1, 2023 - April 30, 2023
AZ-900: Microsoft Azure Fundamentals
April 1, 2023 - April 30, 2023
ITS-304: Python Fundamentals
April 1, 2023 - April 30, 2023
AZ-900: Microsoft Azure Fundamentals
April 1, 2023 - April 30, 2023
ITS-304: Python Fundamentals
April 1, 2023 - April 30, 2023
AZ-900: Microsoft Azure Fundamentals
April 1, 2023 - April 30, 2023
ITS-304: Python Fundamentals
April 1, 2023 - April 30, 2023

Industry Experience

Software & Internet, Financial Services, Media & Entertainment, Healthcare, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
See more

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